	
	function chenge1(argument,argumen) {

				var argumen = "";
				if(typeof argumen==="string"){
				for(var i = 0; i < argument.length; i++) {
					if(argument.charCodeAt(i) >= 65 && argument.charCodeAt(i) <= 90) {
						continue;
					} else if(argument.charCodeAt(i) >= 97 && argument.charCodeAt(i) <= 122) {

						var str3 = argument;
						var num = argument.charCodeAt(i) ^ 32;
						argument = str3.split("");
						argument.splice(i, 1, String.fromCharCode(num));
						for(var j = 0; j < argument.length; j++) {

							argumen = argumen + argument[j];
							console.log(argumen);
						}

						argument = argumen;
						var argumen = "";
					}
				}
				}
				return argument;
				
			}
	function chenge2(argument) {

				var arr = [];
				var str2 = '';
				for(var i = 0; i < argument.length; i++) {
					if(argument.charCodeAt(i) >= 65 && argument.charCodeAt(i) <= 90) {
						console.log(argument[i] + 　'这个是大写字母不需要转换');
						arr[i] = argument[i];
					} else if(argument.charCodeAt(i) >= 97 && argument.charCodeAt(i) <= 122) {
						var num = argument.charCodeAt(i) ^ 32;
						arr[i] = String.fromCharCode(num);
						var stringNum = stringNum + String.fromCharCode(num);
					}
					str2 += arr[i];
				}

			return str2;

			}

			function chenge3(argument) {
				debugger;
				var argumen = "";
				debugger;
				for(var i = 0; i < argument.length; i++) {
					if(argument.charCodeAt(i) >= 65 && argument.charCodeAt(i) <= 90) {
						var num = argument.charCodeAt(i);
						argumen = argumen + String.fromCharCode(num).substr(0, 1);
					} else
					if(argument.charCodeAt(i) >= 97 && argument.charCodeAt(i) <= 122) {
						var num = argument.charCodeAt(i) ^ 32;

						argumen = argumen + String.fromCharCode(num).substr(0, 1);
					}

				}
				return argumen;
			}